WO2011140831A1

WO2011140831A1 - Composite cutting screw die

Info

Publication number: WO2011140831A1
Application number: PCT/CN2011/000847
Authority: WO
Inventors: 李仕清
Original assignee: Li Shiqing
Priority date: 2010-05-14
Filing date: 2011-05-16
Publication date: 2011-11-17
Also published as: CN102179575A

Abstract

A composite cutting screw die includes screw blade bodies (1) and a shell (2). A plurality of screw blade bodies (1) are connected or integrated with the shell (2). The screw blade bodies (1) have any one of the following features or any of the combinations of the following features: 1. for each of the screw blade bodies (1), the included angle formed by the cutting edge surface (9) at and near a chamfer and the tangent of a concentric circle is larger than the included angle formed by the rear cutting edge surface (9) and the tangent of the concentric circle; 2. the diameter of the screw bottom (7) at the chamfer is less than that of the remaining screw bottoms (4); 3. the cutting edge surface (9) of each of the screw blade bodies (1) is provided with a radiation board (5). The cutting screw die with the above mentioned features can increase the using strength and radiation function, and improve the productivity and the cutting stability.

Description

Composite cutting die

The present invention relates to a die, and more particularly to a split-directed composite cutting die, the technical solution being used for machining a screw of a workpiece. Background technique

At present, the die used in machining is composed of a wire blade body and a casing. The cutting edge surface of the wire blade body and the wall of the chip removing hole are on the same curved surface, and the chamfering distance is small, so that the chamfering distance is small and the angle is large. The resistance is too large, and the cutting edge surface and the chip hole wall are on the same curved surface, so that the angle between the wire top and the cutting edge at the edge of the wire edge is too small, the cutting edge is easy to collapse, and the die is scrapped, the workpiece is scrapped, and the workpiece is scrapped. There is no positioning device at the knife to cause the screw head to be messy. Summary of the invention

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a split-direction guided composite cutting die which is easy to position, has high heat dissipation efficiency, is resistant to wear, and has a long life.

In order to achieve the above object, the present invention adopts the following scheme:

Technical solution 1:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface characterized in that an angle between a cutting edge surface at a chamfered portion of each wire edge and a tangent to a concentric circle at the top of the wire is greater than a tangent to a concentric circle at the rear cutting edge surface and the wire top The angle of the.

A split-directed composite cutting die comprising a wire blade body and an outer casing, the wire blade body and the outer casing being connected or integrally formed, and the outer casing is connected or integrated with a plurality of wire edges Body, each cutting edge has a cutting edge surface, characterized in that a part of the cutting edge surface of each wire cutting body is machined into one piece, forming a 'j, wire edge surface, a small wire blade face and corresponding cutting The blade face or the connected chip hole wall is not on a curved surface, and the angle between the cutting edge surface at the chamfered portion and the tangent of the concentric circle at the top of the wire is larger than the tangent of the cutting edge face at the rear and the concentric circle at the top of the wire. The angle of the.

Preferably, the cutting edge between the top of the split-guided composite cutting die and the bottom of the wire is formed by at least two different cutting faces.

Preferably, the angle between the cutting edge surface at the chamfered portion of the cutting wire edge of the split-diameter-oriented composite cutting die and the tangent to the concentric circle on the same side is larger than the clip of the tangent line of the following cutting edge face and the concentric circle angle.

Technical Solution 2:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface, characterized in that at least the first wire cutting edge at the chamfered portion of each wire blade has a wire bottom diameter smaller than that of the other wire cutting edges, and the chamfered portion of each wire blade body The cutting wire edge and the other wire bottom are at least one stepped arrangement or spiral stepped arrangement, and at least the first cutting wire edge is not in line with the other wire bottom on the cutting edge surface. Or spiral.

Preferably, the wire bottom of the cutting wire edge of the split-diameter composite cutting tooth is composed of at least two different sized wire bottom diameters.

Preferably, the line of the wire bottom of the cutting wire edge of the split-guided composite cutting die on the cutting face may constitute at least two different straight lines.

Technical solution 3

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface characterized by each wire edge A part or all of the cutting face of the body is machined into a single piece to form a 'j, wire edge face, and the wire face and the corresponding cutting edge face or the connected chip flute wall are not on a curved or spiral surface.

Preferably, a chamfering portion or a positioning truncating point is provided at a chamfered portion of the cutting wire edge of the split-diameter composite cutting die, and the diameter of the positioning table or the positioning truncating cone is larger than the diameter of the largest wire bottom.

Technical Solution 4:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface, characterized in that: 1. The diameter of the wire bottom of at least the first cutting wire edge at the chamfered portion of each wire cutting body is smaller than the diameter of the wire bottom of the other cutting wire edge, and the chamfering of each wire cutting body The wire bottom of the cutting wire and the other wire bottom are at least one stepped arrangement or spiral stepped arrangement, and at least the wire of the first cutting wire and the other wire are not on the cutting edge. a straight line or a spiral line; 2. A part or all of the cutting edge surface of each wire blade body is machined into one piece to form a small wire blade face, the wire edge face and the corresponding cutting edge face or the connected chip flute wall Not on a curved or spiral surface.

Technical solution 5:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface, characterized in that: 1. The diameter of the wire bottom of at least the first cutting wire edge at the chamfered portion of each wire cutting body is smaller than the diameter of the wire bottom of the other cutting wire edge, and the chamfering of each wire cutting body The wire bottom of the cutting wire and the other wire bottom are at least one stepped arrangement or spiral stepped arrangement, and at least the wire of the first cutting wire and the other wire are not on the cutting edge. a straight line or a spiral line; 2. The angle between the cutting edge at the chamfered portion of each wire blade and the tangent to the concentric circle at the top of the wire is greater than the tangent to the concentric circle at the cutting edge of the rear and the top of the wire The angle of the.

Technical Solution 6:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface, characterized in that: 1. A part or all of the cutting edge surface of each wire blade body is processed into one piece to form a small wire blade surface, and the chip surface and the corresponding cutting edge surface or connected chip discharge The groove wall is not on a curved surface or a spiral surface; 2. The angle between the cutting edge surface at the chamfered portion of each wire edge and the tangent to the concentric circle at the top of the wire is greater than the concentricity of the cutting edge face at the rear and the top of the wire The angle between the tangent of the circle.

Technical Solution 7:

A split-steering composite cutting die comprises a wire blade body and an outer casing, wherein the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face a cutting edge surface, characterized in that: 1. The diameter of the wire bottom of at least the first cutting wire edge at each chamfered portion of the wire cutting body is smaller than the diameter of the wire bottom of the other cutting wire edge, and the chamfering of each wire cutting body The wire bottom of the cutting wire and the other wire bottom are at least one stepped arrangement or spiral stepped arrangement, and at least the wire of the first cutting wire and the other wire are not on the cutting edge. a straight line or a spiral line; 2. A part or all of the cutting edge surface of each wire blade body is machined into one piece to form a small wire blade face, a small wire blade face and a corresponding cutting edge face or a connected chip flute wall Not on a curved surface or spiral surface; 3. The angle between the cutting edge at the chamfered portion of each wire edge and the tangent to the concentric circle at the top of the wire is greater than the concentric circle at the rear cutting edge and the top of the wire. The angle of the tangent; the above three different A combination of surgery programs.

Preferably, at least the diameter of the first wire bottom of the cutting wire edge is larger than the diameter of the wire bottom of the other cutting wire edge at the chamfered portion of the cutting wire edge of the split-direction guided composite cutting die, and the cutting wire edge at the chamfered portion The wire bottom and other wire bottoms are not in a straight line on the cutting edge surface, and the cutting edge surface of each wire blade body is provided with protrusions or depressions. At least one small wire face.

Preferably, at least the diameter of the first wire bottom of the cutting wire edge is larger than the diameter of the wire bottom of the other cutting wire edge at the chamfered portion of the cutting wire edge of the split-direction guided composite cutting die, the cutting wire edge at the corner portion of the example The wire bottom and the other wire bottoms are not in a straight line on the cutting edge surface, and the outer end of the chamfered portion in the cutting direction of each wire blade body is provided with an integral or composite diameter slightly larger than the diameter of the wire bottom. Positioning table or positioning ring or positioning round table.

Preferably, at least one small wire face surface protruding or recessed is provided on a cutting edge surface of each wire edge body of the split diameter guiding composite cutting die, and a chamfering portion in a cutting direction of each wire cutting body The outer end is provided with an integral or composite positioning table or positioning ring or positioning truncated cone having a diameter slightly larger than the diameter of the wire bottom.

Technical Solution 8:

A split-diameter composite cutting die, the split-diameter composite cutting die comprises a wire blade body and an outer casing, the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blade bodies, and the characteristics thereof In that, a part of the cutting edge surface of each wire blade body is processed into one piece to form a small wire blade surface, and the wire edge surface and the corresponding cutting edge surface or the connected chip hole wall are not on a curved surface, and the chamfered portion is The angle between the cutting edge and the tangent of the concentric circle at the top of the wire is greater than the angle between the cutting edge of the rear portion and the tangent of the concentric circle at the top of the wire; the cutting edge of the cutting edge in the cutting direction of each wire blade The outer end of the corner portion has an integral or composite positioning table or positioning ring or positioning truncated cone having a diameter slightly larger than the diameter of the wire bottom.

Preferably, at least the diameter of the first wire bottom of the cutting wire edge is larger than the diameter of the wire bottom of the other cutting wire edge at the chamfered portion of the cutting wire edge of the split-direction guided composite cutting die, and the cutting wire edge at the chamfered portion The wire bottom and other wire bottoms are not in a straight line on the cutting edge surface, and each wire blade body is provided with at least one small wire face surface protruding or recessed on the cutting edge surface, and cutting of each wire edge body The outer end of the chamfered portion in the direction is provided with an integral or composite positioning table or positioning having a diameter slightly larger than the diameter of the wire bottom Ring or positioning the round table.

Beneficial effect

Since the angle between the cutting edge surface at the chamfered portion of the wire blade and the tangent to the concentric circle at the top of the wire is larger than the angle between the cutting edge of the rear portion and the tangent of the concentric circle at the top of the wire, The cracking strength of the cutting edge surface and the wire top at the corner portion is greatly improved; the processing of a small wire surface on the cutting edge surface of each wire blade body enhances the strength of the wire blade body; At least the first wire bottom diameter at the chamfered portion in the cutting direction of the wire blade body is larger than the wire diameter of the other wire cutting edge, and the wire bottom of the wire cutting edge at the chamfered portion is connected with the other wire bottom on the cutting edge surface The line is not in a straight line, which is equivalent to prolonging the chamfering. The cutting amount is increased to improve the cutting efficiency. The outer end of the chamfered portion in the cutting direction of the wire blade body is provided with an integral or composite diameter slightly larger than the wire bottom. The diameter of the positioning table or the positioning of the circular table enables the die to be positioned smoothly on the workpiece to prevent the occurrence of chaotic wire. DRAWINGS

The technical solutions and advantages of the present invention will be described in detail in the accompanying drawings.

Fig. 1 is a schematic cross-sectional view showing a first embodiment of the present invention, and Fig. 2 is a side cross-sectional view showing a first embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view showing a die of a second embodiment of the present invention, and Fig. 4 is a side cross-sectional view showing a second embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view showing a die of a third embodiment of the present invention, and Fig. 6 is a side cross-sectional view showing a third embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view showing a die of a fourth embodiment of the present invention, and Fig. 8 is a side cross-sectional view showing a fourth embodiment of the present invention.

Fig. 9 is a schematic cross-sectional view showing a die of a fifth embodiment of the present invention, and Fig. 10 is a side cross-sectional view showing a fifth embodiment of the present invention. Fig. 11 is a schematic cross-sectional view showing a die of a sixth embodiment of the present invention, and Fig. 12 is a side cross-sectional view showing a sixth embodiment of the present invention. detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the split-steering composite cutting die of the present invention will be described in detail with reference to the accompanying drawings.

Embodiment 1

As shown in FIG. 1 and FIG. 2, the split-diameter composite cutting die includes a wire blade body 1 and a casing 2, and the wire blade body 1 and the outer casing 2 are integrally formed, and a plurality of wire blade bodies 1 are integrally provided on the outer casing 2, Each of the wire cutters 1 has a cutting edge surface 9, and a cutting surface is formed on each cutting edge surface 9 from the wire top 3 to the vicinity of the wire bottom 4 to form a small wire surface 5, a small wire The blade face 5 and the joined cutting face face 9 or the chip evacuation hole wall 6 are not on a curved surface, and the wire face 5 has a function of dissipating heat and enhancing strength.

Embodiment 2

As shown in FIG. 3 and FIG. 4, the split-diameter composite cutting die includes a wire blade body 1 and an outer casing 2, and the wire blade body 1 and the outer casing 2 are integrally formed, and a plurality of wire-blade bodies 1 are integrally provided on the outer casing 2, The diameter 02 of the wire bottom 7 of at least the first wire edge at the chamfered portion in the cutting direction of each wire body 1 is larger than the diameter 01 of the other wire cutting wire bottom 4, and the wire cutting edge 7 at the chamfered portion The line connecting the other wire bottoms 4 on the cutting face 9 is not in a straight line, and the increase of the diameter 02 of the first wire bottom 7 reduces the initial cutting amount, which is equivalent to prolonging the chamfering of the cutting wire edge due to the die The thinner body cannot extend the chamfering, so the main cutting work is too large and therefore laborious. By increasing the diameter of the first wire bottom 7 at the chamfered portion, the main cutting wire edge is extended, the cutting amount is reduced, and the efficiency is improved.

Embodiment 3

As shown in FIG. 5 and FIG. 6, the split-diameter composite cutting die includes a wire blade body 1 and a casing 2, and the wire blade body 1 and the outer casing 2 are integrally formed, and a plurality of wire blade bodies 1 are integrally provided on the outer casing 2, Cutting at the chamfered portion in the cutting direction of each wire blade 1 The angle a between the blade surface 9 and the concentric tangential line is smaller than the angle b between the cutting edge surface 9 of the rear portion and the tangent to the concentric circle, and the cutting edge surface 9 extends rearward from the chamfer along the axis to form a variable angle with the axis. That is, the cutting edge surface 9 at the chamfer is slightly inclined toward the wire top direction, and the cutting edge surface 9 at the rear portion is gradually inclined from the wire top toward the cutting edge surface 9.

When the above-mentioned structure is slatted, the angle between the chamfer of the die and the top of the wire is larger than the angle between the chamfer of the existing die and the top of the wire, thereby increasing the resistance of the cutting face 9 at the chamfer and preventing the edge of the die from falling. The occurrence of teeth.

Implementation 4 - 6

As shown in FIG. 7-12, the split-diameter composite cutting die comprises a wire blade body 1 and a casing 2, the wire blade body 1 and the outer casing 2 are integrally formed, and a plurality of wire blade bodies 1 are integrally provided on the outer casing 2, and each The outer end of the chamfered portion of the wire blade body 1 has a positioning table or a positioning ring or a positioning circular table 8 having a diameter larger than the diameter of the wire bottom.

Other embodiments

In other embodiments, the features of the above four embodiments may be combined arbitrarily. That is, the split-directed composite cutting die can simultaneously have any combination of two or more of the following features: (1) the cutting edge at each chamfered portion of the wire edge is concentric with the top of the wire The angle of the tangent of the circle is greater than the angle between the cutting edge of the rear portion and the tangent of the concentric circle at the top of the wire; (2) the diameter of the bottom of at least the first cutting edge at the chamfered portion of each wire body Less than the diameter of the wire bottom of the other cutting edge, the wire bottom of the wire at each chamfered portion has at least one step-like arrangement or spiral step arrangement with the other wire bottom, and at least the first The line connecting the wire bottom and the other wire bottom on the cutting edge is not in a straight line or a spiral line; (3) part or all of the cutting face of each wire blade is machined into one piece to form a small wire edge The surface of the small wire and the corresponding cutting edge or the connected chip groove wall are not on a curved or spiral surface; (4) the outer end of the chamfered portion of the cutting edge of the cutting edge of each wire blade There is a one-piece or composite setting with a diameter slightly larger than the diameter of the wire bottom. Or cyclic or positioning table positioning boss. For example, in the two embodiments shown in FIGS. 7 , 8 , 9 , and 10 , three of the above features are assembled, that is, the split-diameter composite cutting die includes the wire body 1 and the outer casing 2, The wire blade body 1 and the outer casing 2 are integrally formed, and a plurality of wire blade bodies 1 are integrally provided on the outer casing 2, and each wire blade body 1 has a cutting edge surface, and the wire top 3 to the wire bottom on each cutting edge surface One of the four cutting faces is machined to form a small wire face 5, and the small wire face 5 and the connected chip hole wall are not on a curved surface; the chamfered portion of each wire body 1 in the cutting direction The diameter of the wire bottom of at least the first wire edge is larger than the diameter of the wire bottom of the other wire cutting edge, and the wire bottom of the wire cutting edge at the chamfered portion is not in line with the line connecting the other wire bottoms on the cutting edge; The outer end at the chamfered portion in the cutting direction of the wire blade body 1 has a positioning table or positioning circular table 8 having a diameter of the inner hole larger than the diameter of the wire bottom.

By arbitrarily combining the above four features, the strength and heat dissipation function of the die are increased, or the efficiency is improved or the stability of the cutting is enhanced, and the service life of the die is prolonged.

Although the above description has been made by taking a circular plate die as an example, the die of the present invention may have any die having a larger outer casing of a square hexagonal tubular die, and the main features thereof are still any combination of the foregoing features.

The above-described preferred embodiments are illustrative and not restrictive, and the invention may be embodied and embodied in other forms without departing from the spirit and scope of the invention. The scope of the invention is defined by the claims, and all modifications within the scope of the invention are intended to fall within the scope of the invention.

Claims

Rights request

1. A split-direction guided composite cutting die, comprising a wire blade body and an outer casing, the wire blade body and the outer casing are connected or integrally formed, and the outer casing is connected or integrally provided with a plurality of wire blades, and each wire blade body has a front face A cutting edge surface characterized by having any one of the following features or any combination thereof: (1) the angle between the cutting edge surface at the chamfered portion of each wire edge and the tangent to the concentric circle at the top of the wire is greater than the rear portion The angle between the cutting edge and the tangent of the concentric circle at the top of the wire; (2) the diameter of the wire bottom of at least the first cutting edge at the chamfered portion of each wire body is smaller than the diameter of the wire bottom of the other cutting wire , the wire bottom of the wire edge of each wire blade body is at least one stepped arrangement or spiral step arrangement with other wire bottoms, and at least the first wire cutting edge and other wire bottoms The line on the cutting edge is not on a straight line or a spiral line; (3) a part or all of the cutting face of each wire blade is machined into one piece to form a 'J, wire face, small wire face and Corresponding cutting edge or connected chip flute wall a curved or helicoidal surface; (4) the outer end of the chamfered portion of the cutting wire edge in the cutting direction of each wire blade body has an integral or composite positioning table or positioning ring having a diameter slightly larger than the diameter of the wire bottom or Position the round table.

2. The split-steering composite cutting die according to claim 1, wherein the outer shape of the casing is circular, square, hexagonal or other polyhedral shape.